feat(auth): add user identity verification system with new screens

Add comprehensive identity verification flow including:
- New verification guide screen at /verification-guide for selecting identity type
- New verification form screen at /verification-form for submitting verification documents
- Verification settings screen at /profile/verification for managing verification status
- Move terms and privacy policy to root-level routes (/terms, /privacy)
- Update login to require active terms agreement checkbox
- Database: add in-memory fallback when OPFS is unavailable on web

BREAKING CHANGE: Terms and privacy policy routes moved from /profile/terms and /profile/privacy to /terms and /privacy

app/(app)/(tabs)/profile/_layout.tsx

@@ -40,6 +40,7 @@ export default function ProfileStackLayout() {
       <Stack.Screen name="about" options={{ title: '关于我们' }} />
       <Stack.Screen name="terms" options={{ title: '用户协议' }} />
       <Stack.Screen name="privacy" options={{ title: '隐私政策' }} />
+      <Stack.Screen name="verification" options={{ title: '身份认证' }} />
     </Stack>
   );
 }

app/(app)/(tabs)/profile/verification.tsx

@@ -0,0 +1,5 @@
+import { VerificationSettingsScreen } from '@/screens/profile/VerificationSettingsScreen';
+
+export default function VerificationSettingsPage() {
+  return <VerificationSettingsScreen />;
+}

app/(auth)/verification-form.tsx

@@ -0,0 +1,5 @@
+import { VerificationFormScreen } from '@/screens/auth/VerificationFormScreen';
+
+export default function VerificationFormPage() {
+  return <VerificationFormScreen />;
+}

app/(auth)/verification-guide.tsx

@@ -0,0 +1,5 @@
+import { VerificationGuideScreen } from '@/screens/auth/VerificationGuideScreen';
+
+export default function VerificationGuidePage() {
+  return <VerificationGuideScreen />;
+}

app/_layout.tsx

@@ -175,6 +175,30 @@ function ThemedStack() {
           <Stack.Screen name="index" options={{ headerShown: false }} />
           <Stack.Screen name="(auth)" options={{ headerShown: false }} />
           <Stack.Screen name="(app)" options={{ headerShown: false }} />
+          <Stack.Screen
+            name="terms"
+            options={{
+              headerShown: true,
+              title: '用户协议',
+              headerStyle: { backgroundColor: colors.background.paper },
+              headerTintColor: colors.text.primary,
+              headerShadowVisible: false,
+              headerBackVisible: false,
+              headerLeft: () => <AppBackButton onPress={() => router.back()} />,
+            }}
+          />
+          <Stack.Screen
+            name="privacy"
+            options={{
+              headerShown: true,
+              title: '隐私政策',
+              headerStyle: { backgroundColor: colors.background.paper },
+              headerTintColor: colors.text.primary,
+              headerShadowVisible: false,
+              headerBackVisible: false,
+              headerLeft: () => <AppBackButton onPress={() => router.back()} />,
+            }}
+          />
           <Stack.Screen
             name="post/[postId]"
             options={{

app/privacy.tsx

@@ -0,0 +1,5 @@
+import { PrivacyPolicyScreen } from '../src/screens/profile/PrivacyPolicyScreen';
+
+export default function PrivacyRoute() {
+  return <PrivacyPolicyScreen />;
+}

app/terms.tsx

@@ -0,0 +1,5 @@
+import { TermsOfServiceScreen } from '../src/screens/profile/TermsOfServiceScreen';
+
+export default function TermsRoute() {
+  return <TermsOfServiceScreen />;
+}

src/database/core/DatabaseConfig.ts

@@ -9,6 +9,6 @@ export const DB_CONFIG = {
   DB_NAME_PREFIX: 'carrot_bbs_',
 } as const;
 
-export const getDbName = (userId: string | null): string => {
+export function getDbName(userId: string | null): string {
   return userId ? `${DB_CONFIG.DB_NAME_PREFIX}${userId}.db` : DB_CONFIG.DEFAULT_DB_NAME;
-};
+}

src/database/core/DatabaseManager.ts

@@ -109,25 +109,31 @@ class DatabaseManager {
     const isWeb = typeof window !== 'undefined';
 
     return LockManager.withWebLock(`${DB_CONFIG.LOCK_PREFIX}${dbName}`, async () => {
+      let lastError: unknown;
       for (let attempt = 0; attempt <= DB_CONFIG.MAX_RETRIES; attempt++) {
         try {
           const database = await SQLite.openDatabaseAsync(dbName);
           console.log(`[DatabaseManager] 成功打开数据库 (尝试 ${attempt + 1}/${DB_CONFIG.MAX_RETRIES + 1})`);
           return database;
         } catch (error) {
+          lastError = error;
           const msg = String(error);
           console.error(`[DatabaseManager] 打开失败 (尝试 ${attempt + 1}/${DB_CONFIG.MAX_RETRIES + 1}):`, msg);
 
+          if (isWeb && msg.includes('cannot create file')) {
+            console.log('[DatabaseManager] OPFS 不可用，回退到内存数据库');
+            const memoryDb = await SQLite.openDatabaseAsync(':memory:');
+            return memoryDb;
+          }
+
           if (attempt < DB_CONFIG.MAX_RETRIES) {
             const delay = isWeb ? DB_CONFIG.WEB_RETRY_DELAY_BASE * (attempt + 1) : DB_CONFIG.NATIVE_RETRY_DELAY;
             console.warn(`[DatabaseManager] ${delay}ms 后重试...`);
             await new Promise(r => setTimeout(r, delay));
-          } else {
-            throw error;
           }
         }
       }
-      throw new Error('打开数据库失败');
+      throw lastError;
     });
   }
 

src/navigation/hrefs.ts

@@ -185,9 +185,24 @@ export function hrefProfileAbout(): string {
 }
 
 export function hrefProfileTerms(): string {
-  return '/profile/terms';
+  return '/terms';
 }
 
 export function hrefProfilePrivacy(): string {
-  return '/profile/privacy';
+  return '/privacy';
+}
+
+export function hrefProfileVerification(): string {
+  return '/profile/verification';
+}
+
+export function hrefVerificationGuide(): string {
+  return '/verification-guide';
+}
+
+export function hrefVerificationForm(identity?: string): string {
+  if (identity) {
+    return `/verification-form?identity=${encodeURIComponent(identity)}`;
+  }
+  return '/verification-form';
 }

src/screens/auth/LoginScreen.tsx

@@ -53,6 +53,7 @@ export const LoginScreen: React.FC = () => {
   const [password, setPassword] = useState('');
   const [loading, setLoading] = useState(false);
   const [showPassword, setShowPassword] = useState(false);
+  const [agreedToTerms, setAgreedToTerms] = useState(false);
 
   // 动画值
   const fadeAnim = useRef(new Animated.Value(0)).current;
@@ -84,6 +85,10 @@ export const LoginScreen: React.FC = () => {
       showPrompt({ title: '提示', message: '请输入密码', type: 'warning' });
       return false;
     }
+    if (!agreedToTerms) {
+      showPrompt({ title: '提示', message: '请同意用户协议和隐私政策', type: 'warning' });
+      return false;
+    }
     return true;
   };
 
@@ -211,6 +216,37 @@ export const LoginScreen: React.FC = () => {
                 <Text style={styles.forgotPasswordText}>忘记密码？</Text>
               </TouchableOpacity>
 
+              {/* 服务条款勾选 */}
+              <View style={styles.termsContainer}>
+                <TouchableOpacity
+                  onPress={() => setAgreedToTerms(!agreedToTerms)}
+                  activeOpacity={0.8}
+                  style={styles.checkboxWrapper}
+                >
+                  <MaterialCommunityIcons
+                    name={agreedToTerms ? 'checkbox-marked' : 'checkbox-blank-outline'}
+                    size={22}
+                    color={agreedToTerms ? THEME_COLORS.primary : colors.text.hint}
+                  />
+                </TouchableOpacity>
+                <Text style={styles.termsText}>
+                  我已阅读并同意
+                  <Text
+                    style={styles.termsLink}
+                    onPress={() => router.push(hrefs.hrefProfileTerms())}
+                  >
+                    《用户协议》
+                  </Text>
+                  和
+                  <Text
+                    style={styles.termsLink}
+                    onPress={() => router.push(hrefs.hrefProfilePrivacy())}
+                  >
+                    《隐私政策》
+                  </Text>
+                </Text>
+              </View>
+
               {/* 登录按钮 */}
               <TouchableOpacity
                 style={[styles.loginButton, loading && styles.loginButtonDisabled]}
@@ -234,15 +270,7 @@ export const LoginScreen: React.FC = () => {
               </TouchableOpacity>
             </View>
 
-            {/* 协议提示 */}
-            <View style={styles.policyFooter}>
-              <Text style={styles.policyText}>
-                登录即表示您同意
-                <Text style={styles.policyLink} onPress={() => router.push(hrefs.hrefProfileTerms())}>《用户协议》</Text>
-                和
-                <Text style={styles.policyLink} onPress={() => router.push(hrefs.hrefProfilePrivacy())}>《隐私政策》</Text>
-              </Text>
-            </View>
+
           </Animated.View>
         </ScrollView>
       </KeyboardAvoidingView>
@@ -394,6 +422,26 @@ function createLoginStyles(colors: AppColors) {
       color: THEME_COLORS.primary,
       fontWeight: '500',
     },
+    termsContainer: {
+      flexDirection: 'row',
+      alignItems: 'flex-start',
+      marginBottom: 20,
+      marginTop: 4,
+    },
+    checkboxWrapper: {
+      paddingTop: 2,
+    },
+    termsText: {
+      fontSize: 14,
+      color: colors.text.secondary,
+      marginLeft: 10,
+      flex: 1,
+      lineHeight: 22,
+    },
+    termsLink: {
+      color: THEME_COLORS.primary,
+      fontWeight: '500',
+    },
   });
 }
 

src/screens/auth/RegisterStep3Profile.tsx

@@ -38,7 +38,7 @@ export const RegisterStep3Profile: React.FC<RegisterStepProps> = ({
 
   const [showPassword, setShowPassword] = useState(false);
   const [showConfirmPassword, setShowConfirmPassword] = useState(false);
-  const [agreedToTerms, setAgreedToTerms] = useState(true);
+  const [agreedToTerms, setAgreedToTerms] = useState(false);
   const [errors, setErrors] = useState<Record<string, string>>({});
 
   const validateForm = (): boolean => {

src/screens/auth/VerificationGuideScreen.tsx

@@ -37,7 +37,7 @@ const IDENTITY_OPTIONS = [
     key: 'teacher',
     title: '教职工',
     description: '需要提交工作证或教师资格证',
-    icon: 'chalkboard-teacher',
+    icon: 'account-tie',
   },
   {
     key: 'staff',
@@ -82,10 +82,7 @@ export const VerificationGuideScreen: React.FC = () => {
       return;
     }
     // 导航到认证表单页面
-    router.push({
-      pathname: '/auth/verification-form',
-      params: { identity: selectedIdentity },
-    });
+    router.push(hrefs.hrefVerificationForm(selectedIdentity));
   };
 
   const renderIdentityCard = (option: typeof IDENTITY_OPTIONS[0]) => {
@@ -148,7 +145,7 @@ export const VerificationGuideScreen: React.FC = () => {
         <View style={styles.benefitsContainer}>
           <View style={styles.benefitItem}>
             <MaterialCommunityIcons
-              name="verified"
+              name="check-decagram"
               size={20}
               color={THEME_COLORS.primary}
             />
@@ -164,7 +161,7 @@ export const VerificationGuideScreen: React.FC = () => {
           </View>
           <View style={styles.benefitItem}>
             <MaterialCommunityIcons
-              name="account-group"
+              name="account-group-outline"
               size={20}
               color={THEME_COLORS.primary}
             />

src/screens/auth/index.ts

@@ -7,6 +7,8 @@ export { LoginScreen } from './LoginScreen';
 export { RegisterScreen } from './RegisterScreen';
 export { ForgotPasswordScreen } from './ForgotPasswordScreen';
 export { WelcomeScreen } from './WelcomeScreen';
+export { VerificationGuideScreen } from './VerificationGuideScreen';
+export { VerificationFormScreen } from './VerificationFormScreen';
 
 // 注册步骤组件
 export { RegisterStep1Email } from './RegisterStep1Email';

src/screens/profile/SettingsScreen.tsx

@@ -254,7 +254,7 @@ export const SettingsScreen: React.FC = () => {
         router.push(hrefs.hrefProfileEdit());
         break;
       case 'verification':
-        router.push('/profile/verification');
+        router.push(hrefs.hrefProfileVerification());
         break;
       case 'notification_settings':
         router.push(hrefs.hrefProfileNotifications());

src/screens/profile/VerificationSettingsScreen.tsx

@@ -84,7 +84,7 @@ export const VerificationSettingsScreen: React.FC = () => {
   }, []);
 
   const handleStartVerification = () => {
-    router.push('/auth/verification-guide');
+    router.push(hrefs.hrefVerificationGuide());
   };
 
   const handleViewRecords = () => {
@@ -109,27 +109,10 @@ export const VerificationSettingsScreen: React.FC = () => {
   const identityText = IDENTITY_TEXT[status?.identity || 'general'];
 
   return (
-    <SafeAreaView style={styles.container}>
-      <View style={styles.header}>
-        <TouchableOpacity
-          style={styles.backButton}
-          onPress={() => router.back()}
-          activeOpacity={0.8}
-        >
-          <MaterialCommunityIcons
-            name="arrow-left"
-            size={24}
-            color={colors.text?.primary || '#333'}
-          />
-        </TouchableOpacity>
-        <Text style={styles.headerTitle}>身份认证</Text>
-        <View style={styles.headerRight} />
-      </View>
-
-      <ScrollView
-        contentContainerStyle={styles.scrollContent}
-        showsVerticalScrollIndicator={false}
-      >
+    <ScrollView
+      contentContainerStyle={styles.scrollContent}
+      showsVerticalScrollIndicator={false}
+    >
         {/* 状态卡片 */}
         <View style={styles.statusCard}>
           <View style={[styles.statusIconContainer, { backgroundColor: statusConfig.color + '20' }]}>
@@ -167,7 +150,7 @@ export const VerificationSettingsScreen: React.FC = () => {
               <View style={styles.benefitItem}>
                 <View style={styles.benefitIconContainer}>
                   <MaterialCommunityIcons
-                    name="verified"
+                    name="check-decagram"
                     size={24}
                     color={THEME_COLORS.primary}
                   />
@@ -183,7 +166,7 @@ export const VerificationSettingsScreen: React.FC = () => {
               <View style={styles.benefitItem}>
                 <View style={styles.benefitIconContainer}>
                   <MaterialCommunityIcons
-                    name="lock-open-variant"
+                    name="lock-open-outline"
                     size={24}
                     color={THEME_COLORS.primary}
                   />
@@ -199,7 +182,7 @@ export const VerificationSettingsScreen: React.FC = () => {
               <View style={styles.benefitItem}>
                 <View style={styles.benefitIconContainer}>
                   <MaterialCommunityIcons
-                    name="account-group"
+                    name="account-group-outline"
                     size={24}
                     color={THEME_COLORS.primary}
                   />
@@ -278,7 +261,6 @@ export const VerificationSettingsScreen: React.FC = () => {
           </Text>
         </View>
       </ScrollView>
-    </SafeAreaView>
   );
 };
 

src/screens/profile/index.ts

@@ -17,6 +17,7 @@ export { AccountSecurityScreen } from './AccountSecurityScreen';
 export { AboutScreen } from './AboutScreen';
 export { TermsOfServiceScreen } from './TermsOfServiceScreen';
 export { PrivacyPolicyScreen } from './PrivacyPolicyScreen';
+export { VerificationSettingsScreen } from './VerificationSettingsScreen';
 
 // 导出 Hook 供需要自定义的场景使用
 export { useUserProfile, createSharedProfileStyles, TABS, TAB_ICONS } from './useUserProfile';